[R] Summary values from Glm function (rms package)

2012-03-21 Thread Yonghao
Dear fellow R-users, I’m using the Glm function (gamma family of distributions) from the rms package to compare 2 groups on costs data. Although the summary function does provide the mean cost difference and standard errors, I believe these values were in the (natural) log ratio format. Is there

[R] Summary values from Glm function (rms package)

2012-03-21 Thread Yonghao
Dear fellow R-users, I’m using the Glm function (gamma family of distributions) from the rms package to compare 2 groups on costs data. Although the summary function does provide the mean cost difference and standard errors, I believe these values were in the (natural) log ratio format. Is there

[R] Partial R2 values calculated using different packages

2012-01-23 Thread Yonghao
out, ppcor and gRbase agree with each other but the values generated from these packages tended to be greater than those generated by the rms package. Has anyone encountered a similar situation like mine? Yonghao f <- ols(y ~ x1 + x2 + x3) p <- plot(anova